Unit 1 & 2 & 34656 - Harken

Preassembly
Unit 3—Short Top Foil
If top foil is shorter than 93/4" (248 mm), use one of the following special techniques to ensure sufficient bearing
surface for the foil in the area of the halyard swivel.
UNIT 3
9 3 /4" (248 mm)
9 3 /4" (248 mm) No special treatment required.
9 5 /8"–7 1 /8" (244–181 mm)
9 5 /8"–7 1 /8" (244–181 mm) Do not use plastic bushing
above top connector.
7"–5 1 /2" (178–140 mm)
7"–5 1 /2" (178–140 mm) Do not use plastic bushing
above top connector. Shorten top of connector and if
necessary shorten trim cap.
5 3 /8"–4" (137–102 mm)
Cut-Offs
Do Not Use
Cut-Offs – Do Not Use
Cut-Offs
Do Not Use
5 3 /8"–4" (137–102 mm) Do not use plastic bushing
above top connector. Cut connector right at cross formed
by glue dispersion channels. Use single foil screw in top
foil only.
18 MKIV Underdeck Unit 3
3 1 /2" (89 mm)
3" (76 mm)
2 1 /2" (64 mm)
2" (51 mm)
1 1 /2" (38 mm)
Top Foil
Length from
Worksheet
3 1 /2"
(89 mm)
3"
(76 mm)
2 1 /2"
(64 mm)
2"
(51 mm)
1 1 /2"
(38 mm)
Under 1 1 /2" (38 mm)
1. Initial
top foil
cut length
6 9 /16"
(167 mm)
6 1 /16"
(154 mm)
6 9 /16"
(167 mm)
5 1 /16"
(129 mm)
4 9 /16"
(116 mm)
2. Cut through
middle hole in
top foil.*
Resulting Top
Foil Length
5"
(127 mm)
4 1 /2"
(114 mm)
4"
(102 mm)
3 1 /2"
(89 mm)
3"
(76 mm)
Cut-Offs
Do Not Use
3 1 /2"–1 1 /2" (89–38 mm) Shorten top foil and adjoining
full length foil so two screws are used to assemble joint
instead of four. Do not use plastic bushings above top
connector.
3. Shorten
full length
adjoining
foil by
cutting
through
middle
hole.*
4. Shorten
connector
Length
4 7 /8"
(124 mm)
4 7 /8"
(124 mm)
4 7 /8"
(124 mm)
4 3 /8"
(111 mm)
3 3 /4"
(95 mm)
*To allow for saw cut, position blade so upper half of
middle hole is preserved.
Under 1 1 /2" (38 mm) Eliminate top foil and run foil
higher in torque tube.
5. Shorten
trim cap
No
No
No
Yes
Yes
Cut-Off
Do Not Use